| Okmulgee to Karlovo | 5,868.97 mi (9,445.20 km) |
| Okmulgee to Karnobat | 5,946.06 mi (9,569.25 km) |
| Okmulgee to Kavarna | 5,951.67 mi (9,578.30 km) |
| Okmulgee to Kazanlak | 5,891.35 mi (9,481.22 km) |
| Okmulgee to Knezha | 5,801.23 mi (9,336.18 km) |
| Okmulgee to Kostinbrod | 5,803.43 mi (9,339.72 km) |
| Okmulgee to Kozloduy | 5,775.02 mi (9,293.99 km) |
| Okmulgee to Kyustendil | 5,809.77 mi (9,349.92 km) |
| Okmulgee to Levski | 5,844.82 mi (9,406.33 km) |
| Okmulgee to Lom | 5,755.36 mi (9,262.35 km) |
| Okmulgee to Lovech | 5,841.59 mi (9,401.14 km) |
| Okmulgee to Lukovit | 5,818.85 mi (9,364.54 km) |
| Okmulgee to Lyaskovets | 5,878.50 mi (9,460.53 km) |
| Okmulgee to Mezdra | 5,804.64 mi (9,341.66 km) |
| Okmulgee to Momchilgrad | 5,945.71 mi (9,568.70 km) |
